ADTRAN DUAL Nx56/64 1200142L1# - Manual (Page 28)

Chapter 3. Operation
3-6 Nx56/64 (EIA-530) Option Module User Manual 61200054L2-1
2)RATE 56/64
This sets the base rate of the interface. The actual data
rate depends on the number of DS0s assigned to the Nx
port. The DTE Data Rate versus the number of DS0s
appear in the DTE Data Rate Chart shown in the TSU 100
User Manual.
Choices: Internal, Int-Inv, or External
3)TX CLK
Controls the clock used by the TSU 100 to accept the
transmit (TX) data from the DTE. Normally this is set to
I NTERNAL . If the interface cable is long, causing a phase
shift in the data, the clock can be selected as I NT /I NV
(Internal/Inverted). This switches the phase of the clock
which should compensate for a long cable.
If the DTE provides a clock with TX data, the clock selec-
tion is set to
E XTERNAL . The TSU 100 depends on an
externally supplied clock to accept the TX data.
Choices: Internal, Int-Inv, or External
4)DATA
Used to control the inverting of the DTE data. This inver-
sion can be useful when operating with a High Level
Data Link (HLDC) protocol. Often used as a means to
ensure 1s density.
Choices: Normal or Invert
5)CTS
Used to control characteristics of CTS.
Choices: Normal or Force On (see Table 3-1 on page 3-7).
6)DCD
Data Carrier Detect - Indicates to the DTE when a valid
signal is being received at the Network Interface.
Choices: Normal or Force On (see Table 3-1 on page 3-7).
7)DSR (Data Set Ready)
This signal indicates to the DTE when the DCE is turned
On and ready for operation.
Choices: Normal or Force On (see Table 3-1 on page 3-7).